All categories

3 years ago

HELP PLEASE QUICK!

Chemistry

2 answers:

hammer [34]3 years ago

8 0

Answer:

7.58

Explanation:

took the test and got it right

klio [65]3 years ago

3 0

Answer : The correct option is, 7.58

Explanation : Given,

pOH = 6.42

pH : It is defined as the negative logarithm of the hydrogen ion concentration.

As we know that,

$pH+pOH=14$

Now put the value of pOH in this expression, we get the pH of this solution.

$pH+pOH=14$

$pH+6.42=14$

$pH=14-6.42$

$pH=7.58$

Therefore, the pH of this solution is, 7.58

You might be interested in

Benzene and toluene form ideal solutions. Consider a solution of benzene and toluene prepared at 25∘C. As suming that the mole f

Montano1993 [528]

Answer:

XL(toluene) = 0.77

XL(benzene) = 0.23

Explanation: see attachment

7 0

3 years ago

Read 2 more answers

100 points! Formation of an Ion

djyliett [7]

$\huge\underline\pink {Answer}$

If every oxygen ion is combined with an aluminium ion has a charge of -2,the charge of each aluminum ion would be -3.

Uncharged Aluminum atom must need to lose it's electrons,in order to form the bond with oxygen which has vacant orbitals

ion

atom that has a positive or negative charge because it lost or gained one or more electrons

chemical bond

the attractive force that holds atoms or ions together

ionic bond

a chemical bond in which one atom loses an electron and the other atom gains electrons to form ions

chemical formula

a combination of chemical symbols and numbers to represent a substance

covalent bond

bond formed by the sharing of electrons between atoms

8 0

3 years ago

Read 2 more answers

Eddie is performing an experiment. He asked the question what type of soil makes plants grow the fastest. He has four plants. He

Bezzdna [24]

Manipulated variable: the types of soil
Responding variable: how much t the plants grow

4 0

3 years ago

What are two ways condensation differs from boiling?

NARA [144]

Condensation is when vapor liquidizes and gathers on top of a surface, while boiling is turning a liquid into a gas or vapor. They are opposites. In the first, the molecules of the substance split and separate and increase the volume, while in the second they come together and reduce the volume.

6 0

3 years ago

An organic solvent has a density of 1.31g/ml. What volume is occupied by 50.0g of the liquid?

vesna_86 [32]

Answer:

38.16 mL

Solution:

Data Given;

Density = 1.31 g/mL

Mass = 50 g

Volume = ?

Formula Used;

Density = Mass ÷ Volume

Solving for Volume,

Volume = Mass ÷ Density

Putting values,

Volume = 50 g ÷ 1.31 g.mL⁻¹

Volume = 38.16 mL

8 0

3 years ago